Answer:
length = 16 ft
width = 12 ft
Step-by-step explanation:
Width:
[tex]2(x+4)+2x=56[/tex]
[tex]2x+8+2x=56[/tex]
[tex]4x+8=56[/tex]
[tex]4x=56-8[/tex]
[tex]4x=48[/tex]
[tex]x=48/4[/tex]
[tex]x=12ft[/tex]
Length:
length = 4 ft more than width
length = [tex]4+12[/tex]
length = [tex]16ft[/tex]